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exposure compensation with sepia filters


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#1 pip hare

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Posted 23 August 2006 - 09:05 AM

hi,
can anybody tell me (accurately) how much i need to compensate the exposure when shooting with sepia filters 1 - 3? have been trawling the net and getting nowhere...
greetings from berlin
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#2 Jon Kukla

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Posted 23 August 2006 - 04:53 PM

The problem may be that there is not a "standard" answer. Different manufacturers filters, or even older filters by the same manufacturer may behave differently. The easiest way to get an answer for a filter factor tends to be the old method of metering against a constant light source with and without the filter.
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#3 gamal shehab

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Posted 24 August 2006 - 12:55 PM

you can just mesure any filter factor by using an expojer meter and mesuring the the light from any source of light with and without the filter and the difference in exp. is the filter factor
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